diff --git a/python-tornado.changes b/python-tornado.changes
index 17bfcf8..123a09d 100644
--- a/python-tornado.changes
+++ b/python-tornado.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Mar  7 11:27:44 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Fix fdupes macro expansion
+
 -------------------------------------------------------------------
 Wed Jan 30 11:13:17 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-tornado.spec b/python-tornado.spec
index 61fe00c..e5d8ad4 100644
--- a/python-tornado.spec
+++ b/python-tornado.spec
@@ -110,7 +110,7 @@ fi
 %install
 %python_install
 %fdupes -s demos
-%python_expand %fdupes %{buildroot}%{python_sitearch}
+%python_expand %fdupes %{buildroot}%{$python_sitearch}
 
 %check
 export ASYNC_TEST_TIMEOUT=30